Bitumen, a substance known for its waterproofing and adhesive properties, can occur naturally or be formed through the distillation of crude oil. Bitumen production through distillation removes lighter crude oil components, such as gasoline and diesel, leaving the “heavier” bitumen behind. The producer often refines it several times to improve its grade.
Bitumen is generally for industry use. The substance was first used for its natural adhesive and waterproofing characteristics, helping to bind building materials together, as well as to line the bottoms of ships. Also it is used as a binder in asphalt for roads, runways, parking lots, and foot paths.